Muammer Bilici

Dr. Muammer Bilici

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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14 June 2015 in World Journal of Gastroenterology
Verified
Journal Article
Open access
SISevil Uygun Ilikhan
Sevil Uygun Ilikhan
MBMuammer Bilici
Muammer Bilici
HSHatice Sahin
Hatice Sahin
AAAyşe Semra Demir Akca
Ayşe Semra Demir Akca
MCMurat Can
Murat Can
YUYucel Ustundag
Yucel Ustundag
AIM: To determine the predictive value of increased prolidase activity that reflects increased collagen turnover in patients with hepatocellular carcinoma (HCC). METHODS: Sixty-eight patients with HCC (mean age of 69.1 ± 10.1), 31 cirrhosis patients (mean age of 59.3 ± 6.3) and 33 healthy volunteers (mean age of 51.4 ± 12.6) were enrolled in this study. Univariate and multivariate analysis were used to evaluate the association of serum α-fetoprotein (AFP) values with HCC clinicopathological features, such as tumor size, number and presence of vascular and macrovascular invasion. The patients with HCC were divided into groups according to tumor size, number and presence of vascular invasion (diameters; ≤ 3 cm, 3-5 cm and ≥ 5 cm, number; 1, 2 and ≥ 3, macrovascular invasion; yes/no). Barcelona-clinic liver cancer (BCLC) criteria were used to stage HCC patients. Serum samples for measurement of prolidase and alpha-fetoprotein levels were kept at -80 °C until use. Prolidase levels were measured spectrophotometrically and AFP concentrations were determined by a chemiluminescence immunometric commercial diagnostic assay. RESULTS: In patients with HCC, prolidase and AFP values were evaluated according to tumor size, number, presence of macrovascular invasion and BCLC staging classification. Prolidase values were significantly higher in patients with HCC compared with controls (P < 0.001). Prolidase levels were significantly associated with tumor size and number (P < 0.001, P = 0.002, respectively). Prolidase levels also differed in patients in terms of BCLC staging classification (P < 0.001). Furthermore the prolidase levels in HCC patients showed a significant difference compared with patients with cirrhosis (P < 0.001). In HCC patients grouped according to tumor size, number and BCLC staging classification, AFP values differed separately (P = 0.032, P = 0.038, P = 0.015, respectively). In patients with HCC, there was a significant correlation (r = 0.616; P < 0.001) between prolidase and AFP values in terms of tumor size, number and BCLC staging classification, whereas the presence of macrovascular invasion did not show a positive association with serum prolidase and AFP levels. CONCLUSION: Considering the levels of both serum prolidase and AFP could contribute to the early diagnosing of hepatocellular carcinoma.

1 February 2016 in Journal of Stroke and Cerebrovascular Diseases
Verified
Journal Article
Closed access
IOIbrahim Ilker Oz
Ibrahim Ilker Oz
Murat YUCELMurat YUCEL
Murat YUCEL
MBMuammer Bilici
Muammer Bilici
IŞİsMail Şerifoğlu
İsMail Şerifoğlu
RSRaşit Sayın
Raşit Sayın
MAMustafa Acıkgoz
Mustafa Acıkgoz

15 November 2015 in Turkish Journal of Gastroenterology
Verified
Journal Article
Closed access
HDHakan Demirci
Hakan Demirci
SISevil Uygun İlIkhan
Sevil Uygun İlIkhan
KÖKadir Öztürk
Kadir Öztürk
YÜYücel Üstündağ
Yücel Üstündağ
ÖKÖmer Kurt
Ömer Kurt
AUAhmet Uygun
Ahmet Uygun
Background/Aims: In our study, we aimed to assess the effect of vitamin E and C supplementation to triple and quadruple Helicobacter pylori eradication regimens. Materials and Methods: Four hundred patients with H. pylori infection were classified into four groups. Patients in group A (n=100) received amoxicillin, clarithromycin, and lansoprazole for 2 weeks. In group B, patients (n=100) received vitamins C and E for a month, in addition to amoxicillin, clarithromycin, and lansoprazole for 2 weeks. Patients in group C (n=100) received amoxicillin, clarithromycin, lansoprazole, and bismuth subcitrate for 2 weeks, whereas those in group D (n=100) received vitamins C and E for a month, in addition to amoxicillin, clarithromycin, lansoprazole, and bismuth subcitrate for 2 weeks. H. pylori eradication was assessed with the C14 urea breath test 2 months after the end of the therapy. The eradication rate was assessed using per-protocol (PP) and intention-to-treat (ITT) analyses. Results: Three hundred forty-eight patients finished the study. The eradication of H. pylori was achieved in 63 of 84 patients (75%) by PP and 63 of 100 (63%) by ITT analysis in group A, 60 of 84 (71.4%) by PP and 60 of 100 (60%) by ITT analysis in group B, 72 of 89 (80.9 %) by PP and 72 of 100 (72%) by ITT analysis in group C, and 76 of 91 (83.5%) by PP and 76 of 100 (76%) by ITT analysis in group D. There was no remarkable change between groups A and B (p>0.05). Similar results were also found between groups D and C (p>0.05). Conclusion: This study revealed that supplementing vitamins C and E to either the triple or quadruple therapies did not provide an additional advantage for achieving significantly higher eradication rates for H. pylori.

2 August 2016 in International Journal of Endocrinology
Verified
Journal Article
Open access
PDF file
ISIsmail Serifoglu
Ismail Serifoglu
IOIbrahim Ilker Oz
Ibrahim Ilker Oz
MBMuammer Bilici
Muammer Bilici
Objectives. The aim of our study was to investigate the differences in adrenal gland volume between nondiabetic controls and Type-2 diabetic patients and to examine the influence of glycemic control in diabetes mellitus on adrenal gland volume.Methods. From March 2 to November 25, 2015, 62 consecutive patients with Type-2 DM along with 62 nondiabetics matched by age, gender, and BMI were enrolled in this prospective study. Our diabetes patients were categorized into two groups, well-controlled and poorly controlled diabetes groups. Adrenal volumetric measurements were performed by two radiologists, prospectively and independently, with semiautomatic software. Interobserver reliability was studied using the interobserver correlation coefficient (ICC).Results. The total adrenal volume (TAV) was significantly higher in Type-2 diabetic patients when compared with nondiabetic patients (p<0.05). When we investigated diabetic patients according to glycemic controls, the TAVs in controlled diabetic patients were significantly higher than in those of the poorly controlled or uncontrolled diabetic patients (p<0.05). Nondiabetic control patients have significantly smaller TAVs when compared to controlled and poorly or noncontrolled diabetic patients (p<0.05).Conclusion. Our study suggests that adrenal gland volume measurement may be used as an indirect marker of glycemic control in patients with diabetes.

11 November 2016 in Vascular and Endovascular Surgery
Verified
Journal Article
Closed access
IOIbrahim Ilker Oz
Ibrahim Ilker Oz
ISIsmail Serifoglu
Ismail Serifoglu
MBMuammer Bilici
Muammer Bilici
NANamik Kemal Altinbas
Namik Kemal Altinbas
EOEvrim Bozay Oz
Evrim Bozay Oz
EAEce Isin Akduman
Ece Isin Akduman
To consider the clinical outcomes and restenosis rates of drug-eluting balloons (DEBs) and percutaneous transluminal angioplasty (PTA) in diabetic patients with infrapopliteal (IP) arterial disease. This retrospective, single-center study included 51 patients (37 males; mean age: 63.43 ± 9.81 years) with diabetes mellitus having IP arterial disease, from October 2012 to September 2014. Twenty-two patients were treated with PTA, and 29 patients were treated with DEBs. After intervention, the patients were evaluated in the first week and every 3 months, clinically and radiologically. Univariate and multivariate analyses were used to evaluate the clinical outcomes of diabetic patients with IP arterial disease who were treated with either DEBs or PTA. There were no statistically significant differences between the groups in terms of age and gender, risk factors, characteristics of lesions, or the diameters or length of the balloons (P > .05). Primary patency was higher in the DEB group than in the PTA group (97.8% vs 81.1%, P = .020) in the first 3 months. However, there was no statistically significant difference at 1-year follow-up (68.2% vs 48.5%, P = .131). At the 12-month follow-up, there was no difference in clinical improvement between the groups (P = .193). The findings of this study reveal that DEB is a safe alternative treatment method for IP arterial disease in diabetic patients.

12 December 2015 in Indian Journal of Hematology and Blood Transfusion
Verified
Journal Article
Open access
PDF file
SESehmus Ertop
Sehmus Ertop
MBMuammer Bilici
Muammer Bilici
HEHuseyin Engin
Huseyin Engin
CBCagatay Buyukuysal
Cagatay Buyukuysal
MAMuzeyyen Arslaner
Muzeyyen Arslaner
ITIshak Ozel Tekin
Ishak Ozel Tekin
Venous thromboembolism (VTE) is generally classified as provoked or unprovoked. This dichotomy is important for following patients, mortality rate, prognosis and whether more efficient therapy is needed. In VTE patients, during initial diagnosis, it is not known exactly whether red cell distribution width (RDW) have a predictable value for this differentiation and pathogenesis. In this study, 298 patients with VTE and 197 control subjects were included. Patients with VTE were defined as provoked or unprovoked with respect to physical examination findings and laboratory values. Changes in RDW were tested between VTE patients and control subjects, provoked and unprovoked VTE patients, and separately with control subjects. RDW was found to be high in provoked and unprovoked groups compared with control group (p < 0.001, p = 0.003 respectively). RDW was significantly high in provoked VTE patients group compared with unprovoked patients (p < 0.001) and a cut-off value was found to be 13.6 %. In ROC analysis, sensitivity was 90.19 % and specificity was 82 % (95 % CI 85.4–93. 8 % and 95 % CI 72.3–89. 6 % respectively). RDW could be used as a simple, costeffective and a reliable test independent of age in differentiation of provoked and unprovoked VTE. In order to better understand its role, prospective large homogenized population studies in different regions are necessary.